Trying to make sure I understand this - does this mean you've got it standing there on edge as a test of whether the glass bows, because if it bows a little bit it'll knock it over and you'll know?VLDesign;2900985; said:The thing in the middle is a board that if moved more than a 1/8" out (A bow in the glass) it will fall. Just there so I know what to expect with the glass.